Finding the Fourth Proportional to 7,320,871.08, 10,102,541.10 and 4,057,990.92
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Solution
The fourth proportional to 7,320,871.08, 10,102,541.10 and 4,057,990.92 is: 5,599,882.80
Step by Step Solution
- Step 1: Write the proportion equation
7,320,871.08 : 10,102,541.10 = 4,057,990.92 : x - Step 2: Convert to fraction form
7,320,871.08/10,102,541.10 = 4,057,990.92/x - Step 3: Cross multiply
7,320,871.08x = 10,102,541.10 × 4,057,990.92 - Step 4: Simplify right side
7,320,871.08x = 40,996,020,052,726.81 - Step 5: Solve for x
x = 40,996,020,052,726.81/7,320,871.08 - Step 6: Final answer
x = 5,599,882.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.